Online Mechanical Engineering Test - Automobile Engineering Test

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Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
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The flywheel and the pressure plate bind the clutch disc between them so that the engine and the transmission can be engaged.

Yes

[#]

A traction control system (TCS) in automobiles controls the

vibrations on the steering wheel

engine power during acceleration

torque that is transmitted by the tyres to the road surface

stopping distance in case of emergency

[#]

The most commonly used supplementary restraint system (SRS) component is

seat belt

brake

airbag

steering

[#]

The three basic cylinder arrangements for automotive engines are

flat, radial, and V

in a row, in line, and opposed

in line, V, and opposed

V, double row, and opposed

[#]

The crescent-shaped cavity on the piston head top surface is called as

piston oil hole

snap ring

valve recess

valve clearance

[#]

The calorific value of petrol is about

36.5 - 38.5 MJ/kg

39.4 - 42.5 MJ/kg

42.7 - 43.5 MJ/kg

45.5 - 47 MJ/kg

[#]

The major purpose of an electronically-controlled automatic transmission is that this type of transmission

eliminates gear clutches

eliminates the gear shift lever

reduces the number of automatic-transmission components

reduces shift shock and achieves more efficient transmission of engine torque

[#]

The gradient resistance to a vehicle having a mass of 980 kg moving on an incline of 10° is

1.6694 N

16.694 N

166.94 N

1669.4 N

[#]

The main purpose of an engine's air cleaner is that it

controls the engine's air intake volume

reduces the engine's air intake noise

prevents rain water from entering the engine

prevents dust and other foreign matter from entering the engine

[#]

10.

The starting system includes

a battery, a starter, and an ignition switch

a battery, a distributor, and an ignition switch

a battery, a starter, and a distributor

a distributor, a starter, and an ignition switch

[#]

11.

The maximum torque multiplication ratio in a torque converter is about

2.5

[#]

12.

The best fuels for compression ignition engines are

straight chain paraffins

aromatics

branched chain paraffins

napthalenes

[#]

13.

When indicated power (I.P.) and frictional power (F.P.) are known, we can calculate

brake power

compression ratio

specific air consumption

mean effective pressure

[#]

14.

The most accurate ignition system of a spark ignition engine is

magneto system

battery system

electronic control unit system

magneto and electronic system

[#]

15.

A front stabilizer bar is used to

increase vehicle load-carrying capacity

provide a softer ride

control suspension movement and body roll

all of the above

[#]

16.

The motion of the cam is transferred to the rocker arm, moving it upwards and downwards. This rocker-arm motion then forces the valve downwards against the force in the valve spring so that the valve can open.

True

False

[#]

17.

The commonly used antifreeze solution in automobiles is

carbon disulphide

ethylene glycol

ammonium chloride

freon-12

[#]

18.

The engine's idling speed will increase by a slight degree immediately after a cold engine has been started. It will drop as the engine warms up. and it will eventually reach the standard level.

True

False

[#]

19.

Wheel base of a vehicle is the

distance between the centres of the front and rear wheels

distance between the centres of the front tyres

distance between the centres of the rear tyres

extreme length of the vehicle

[#]

20.

Bead wires are made of

steel

copper

zinc

aluminium

[#]

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Online Mechanical Engineering Test - Automobile Engineering Test

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